Sanyo MCO-5M Service Manual page 19

8. Door alarm
Display
Safety operation :
9. Auto return
Function
10. Calibration
Temperature
calibration
CO calibration
2
<Span adjustment>
O calibration
2
<Span adjustment>
: When the door is opened, DOOR lamp is lit.
When the door is shut, DOOR lamp goes off.
When the door is opened, fan motor, CO
(UV lamp is also OFF if it is optionally fitted).
If the door is opened for 60seconds, the heater goes off.
: In setting mode, Key Lock mode and Function mode, if any key is not
operated for 90 seconds or more, the display automatically reverts to PV
without storing the value to be changed.
In PV display, press CAL key for approx. 5seconds to enter the device
: into temperature calibration mode.
Input a proper value with
store the value. Finally the device returns to PV display.
: In PV display, press CAL key for approx. 5seconds to enter the device
into temperature calibration mode, then press CAL key again to enter
the device into CO
in PV display, press CAL key for approx. 5seconds to enter the device
into temperature calibration mode, then press CAL key again to enter
the device into CO2 calibration mode.
Input a proper value with
recognize and store a span calibrated value. Finally the device returns
to PV display.
If CO level is lower than 0.9% or higher than 20% on the display, or if a
2
value to calibrate is higher than 2.0%, the buzzer sounds to ignore the
data then automatically reverts to PV display.
: In PV display, press CAL key for approx. 5seconds to enter the device
into temperature calibration mode and press CAL key again to enter the
device into CO calibration mode. Then press CAL key again to enter
2
the device into O calibration mode.
2
Input 20.0 with key and
store as Zero adjustment value. Finally the device returns to PV display.
When the O setting value is 21.9% or less, zero adjustment is
2
inoperative.
<For your information>
Why Zero adjustment value should be "20.0"?
O density in the dry air is approx. 20.9%, however it may be approx.
2
19.7% in the incubator chamber (37℃ and 95% R.H.). The value "19.7"
moved up to "20.0".
In PV display, press CAL key for approx. 5seconds to enter the device
into temperature calibration mode and press CAL key again to enter the
device into CO calibration mode. Then press CAL key again to enter
2
the device into O calibration mode.
2
Input proper value with
recognize and store as Span adjustment value. Finally the device
returns to PV display.
Span adjustment can be done if setting value or present value is less
than 15% or more than 25%.
2
key and
calibration mode.
2
key and
key then press ENT key to recognize and
key and
16
valve and O valve is OFF.
2
key then press ENT key to
key then press ENT key to
key then press ENT key to